cochran



J. W. CGC-HRAN. I Liquor .Gagef' No. 175185. Patented Apr|28, .1857..

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JNQV. COCHRAN, F NEV YORK, N. Y.

`GAGCEI FOR CASKS.

. Specification of Letters Patent No. 17,185, dated April 28, 1857.

' To all/whom, t may concern Be it known thatI, JOHN WEBSTER COCH- RAN,of the city, county, and State of New York, have invented new and usefulImprovements in Cask or Liquor Gages; and I do hereby declare that thefollowing is a full and exact description thereof, reference being hadto the accompanying drawing and to the letters of reference markedthereon.

The same letters apply to like parts in all the figures.

I make my gage by connecting a number of small tubes or rods ashereinafter set forth. I first form stock or frame A, of said instrumentby attaching four tubes or rods `shortarms e, e, which are also attachedto thetelescopic or measuring arms h, h, and 7L', h. It will be readilyseen by reference to the drawing that by moving the thumb or set screwsup or down the arms L, 7L, and h t can be extended or folded up andretained at any required point or degree by a turn of the set screws b,b, which rmly hold the sliding plungers d, cl, to the rods a, a, a, a,and the distance the points of the measuring arms h L are a part will beknown by reference to the scales marked on the rods a, a, as the figuresneXt to the underside of the sliding plungers d, al, indicate the exactmeasurement made by the extended arms L 7L. When it is required toshorten the said arms for a smaller cask or vessel the arms 71, L arerun into the hollow arms 7L, h, to a given point marked No. 2, whichcorresponds with scale No. 2 on rod a. Vhen it is required to gage acask with the bung hole out of the center, or is in the head at be addedtogether to get the mean diameter of the cask (see Fig. 11.)

C, C, is a disk or cylinder attached to top necessity of making anyfigures or calculations.

Figure 1 lis a View of the stock or frame A, with the arms and the partsconnected with `them removed, showing only the four rods a, a, a, a, andthe top and bottom pieces (i, i) and table disk C attached with thescales marked thereon, on one rod commencing at the lower end at andrunning upward sufficient to give the diameter at the bung downward whenthe gage is inserted into the bung of course with all the arms closed orfolded up. The upper scales marked Nos. 1 and 2 are to show themeasurement of the expanding arms by locking at the figures underside ofthe sliding plungers (Z, d.

Fig. 2- represents the instrument A, inserted into cask B, with the armsL L eX- tended to the heads of the cask. The gager will note the lengthbetween heads by reference to the scale of the rods a, a. Then to findthe diameter of the cask at the heads the gager has only to raise thegage A, up until the points of the arms z la come in contact with thestaves on the upper or bung side of the cask as shown by the dottedlines a', The bung diameter scale, on rod a, will show how far it hascome out of the cask, and the arm scale will show where the dotted line0, would cross and the depth of the curve or bulge of the staves wouldbe at once known, double that, or add the same number of inches for thedepth of curve for the opposite side and deduct that from the bungdiameter and the remainder will be the last diameter of the heads. onthe main part or stem of the gage the arm-scale because it indicates thedegree of expansion of one or both o f the arms when extended formeasurement. If it should be found that the heads were not of equalldiameter then each head must be found separately by working the armsindependent of each other. To get the diameter of the cask at-rightangles with the bung diameter to find if the cask is oval or not thearms must be closed up a little and turned across the cask. Then thegage, A, can be removed from the bung by shutting up the arms by raisingup the thumb screws as high as permitted to go.

I call that scale Fig. 1l, representsthe gage A, inserted into a cask,B, with the bung in the head and at one side, where it is used with theconnecting pin (p) removed and the set screws,

plungers, arms, &c.', are working separate and independent of eachother, with one long and one short arm, taking different measurements.Their sums must be added together to obtain the mean diameter of thecask.

Fig. 9, represents the gage A, with the arms closed up between the rodsa, a, a, a. This is the View the instrument would have when it isinserted into the bung hole of a cask. Then the arms would be let freeby backing the set screws and the measurements would be made as abovedescribed, the disk or cylinder C, at top with the table unrolled so theproper figures can be seen that will give the capacity of the caskreferring to the length and the diameter columns.

Fig. 4L, is a view of the opposite side of the same instrument A,showing the arms folded up.

Fig. 3, is an end View of Fig. 4, with the top piece removed showing therods a, a, a, a, the sliding plungers cl, cl, thumb screws b, Z), andconnecting pin (p) Fig. 8, detailed View of sliding plungers d, d, withone set screw attached connecting pin (p) and -rods c, c, lower slidingplungers d d with arms e, e, attached; Fig. 5, side view of set screwshowing the hole through the center of the screws for the connecting pin(p) which holds both plungers and all the parts thereto attachedtogether so that the arms work equally with each other whether the armsmeasure the same or not, as one can be set longer than the other whichdoes not affect the operation of the instrument.

Fig. 6 is a top view of the stay piece (f) to support the rods a, a, a,-a; Fig. 7 top view of the lower sliding plungers showing the rods a, a,a, a, and 0, c, in section. On opposite side is a half round groove madeto receive the arms b- 71, when the gage is closedup.

I do not intend to confine myself to this particular manner ofconstructing my gage but in any well known way so long as it issubstantially the same in eect.

Having fully and clearly described the construction and operation of myimprovements, what I claim as my invention and desire to secure byLetters Patent is 1. The varrangement of the sliding plungers and setscrews in relation to the connecting rods and measuring arms, by which Iam enabled to work each arm independent from ,the other, and gage casksor vessels whether the bung hole is in the centerl in the head orelsewhere.

2. Il claim making the measuring arms adjustable as herein set forth.

J. W. COCHRAN.

Witnesses:

JOHN S. HOLLINGSHEAD, SAML. GRUBB.

